Sangdang Sanseong Fortress

Sangdangsanseong is a fortress in Sanseong-dong, Cheongju. Built during the Three Kingdoms period and rebuilt in the Joseon era, it has a 4.2km walking course along its walls. A wide lawn sits in front of Gongnammun, and a parking lot and restrooms are available. There is no admission fee, and the south gate parking lot is small.